A reverse shoulder system can include, for example, a glenoid baseplate comprising a longitudinal axis, the glenoid baseplate further including a stem and a central channel within a sidewall of the stem. The stem can include a longitudinal axis. The longitudinal axis of the glenoid baseplate can be angled with respect to the longitudinal axis of the stem, wherein the longitudinal axis of the glenoid baseplate is not perpendicular with respect to the longitudinal axis of the stem. Other components including a glenosphere, tools, and methods of use are also disclosed.

A spinal cord device comprises a body formed of a biocompatible, biodegradable matrix and includes a proximal cranial surface and a distal caudal surface for connection to two ends of an injured spinal cord after removal of an injured section. The body has two sets of through channels A, B, C, D, E and F with openings in the cranial surface and the caudal surface for connection of descending motor pathways from cranial white to caudal gray matter and ascending sensory pathways from caudal white to cranial gray matter of the two spinal cord ends. The device has a transversal diameter (D.sub.t) within a range of from 9 to 13 mm, an anteroposterior diameter (D.sub.a) and a length (L), and the ratio anteroposterior diameter/transverse diameter (RAPT) is in a range of from 0.5 to 1.0. Kits employ a plurality of such devices.

Methods and apparatuses including a patellar implant are disclosed. The patellar implant can include a member, an articulation component and a connection mechanism. The member can be configured to engage a osteotimized surface of a patella. The articulation component can have an articulation surface that can be configured to articulate with a femoral prosthesis along a patellar groove. The connection mechanism can connect the articulation component with the member and can be configured to allow for at least one of removal and translational movement of the articulation component relative to the member and patella.

A spinal cord device comprises a body formed of a biocompatible, biodegradable matrix. The body includes proximal, cranial and distal, caudal surfaces for connection to two ends of an injured spinal cord after removal of an injured section and has through channels with openings in the cranial and caudal surfaces for connection of descending motor pathways and ascending sensory pathways. The device has a transversal diameter (D.sub.t), an anteroposterior diameter (D.sub.a) and a length (L), wherein D.sub.t is from 9 to 13 mm and the ratio anteroposterior diameter/transverse diameter (RAPT) is from 0.5 to 1.0 and wherein the position and dimension of the channels, RAPT value, and cranial surface area and/or caudal surface area of the device are adopted to the shape, level, dimension of white and gray matter, and size of the injured spinal cord for optimal connection between spinal cord tracts. Kits and methods employ such devices.

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surfaces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surf aces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surf aces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

An adjustable spinal fusion intervertebral implant is provided that can comprise upper and lower body portions that can each have proximal and distal wedge surf aces disposed at proximal and distal ends thereof. An actuator shaft disposed intermediate the upper and lower body portions can be actuated to cause proximal and distal protrusions to converge towards each other and contact the respective ones of the proximal and distal wedge surfaces. Such contact can thereby transfer the longitudinal movement of the proximal and distal protrusions against the proximal and distal wedge surfaces to cause the separation of the upper and lower body portions, thereby expanding the intervertebral implant. The upper and lower body portions can have side portions that help facilitate linear translational movement of the upper body portion relative to the lower body portion.

Described herein are pin guide devices and related systems, methods, and kits useful in the formation of a glenoid implant site. The pin guide device includes a cup comprising an inner concave surface, an outer convex surface, a cup wall between the inner and outer surfaces, and a substantially circular base, an elongated opening extending through the cup wall, an elongated opening extending through the cup wall, an elongated opening extending through the cup wall, and a stem comprising a passageway for receiving the pin, the stem extending through the elongated opening and slidable within the elongated opening.

This disclosure relates to surgical devices and methods. The disclosed surgical device and method may be used to resect, cut or otherwise remove tissue during an orthopaedic procedure. The surgical device may be reconfigured to reduce a size of the surgical device during placement in the patient.